Works in Any Browser
Protect PDFs using Chrome, Edge, Firefox, Safari, and other modern browsers.
Password protect PDF documents online without installing software or browser extensions. Everything works in your browser.

Secure your PDF files without downloading desktop software.
Protecting PDF documents should be simple regardless of your operating system. Browser-based tools let you add password protection from virtually any device.
With iMZi PDF, upload your PDF, create a password, and download your protected document directly from your browser. No installation or setup is required.
Protect your PDF in three easy steps.
Select the PDF document you want to protect.
Create a secure password for your PDF.
Download your password-protected PDF instantly.

Protect PDFs from any modern browser.
Protect PDFs using Chrome, Edge, Firefox, Safari, and other modern browsers.
No desktop software or browser extensions needed.
Password protect confidential documents.
Your files remain private during processing.
Secure PDF documents from any device using a modern web browser.
Find answers to common questions about this tool.
Secure PDF documents online with password protection using iMZi PDF.